Seattle Home Addition Design-Build Services

Add space, comfort, and value to your home with a custom addition designed to meet your family’s evolving needs.

Is your family growing, but your home isn’t? Many Seattle homeowners are choosing to remodel and adapt their homes to meet changing needs and evolving lifestyles. If moving doesn’t feel like the right option, a custom home addition is the perfect solution to increase your living space, enhance comfort, and add lasting value to your home.

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Second-Story Addition

Do you need more room? Expand upward without sacrificing yard space with a second-story addition. We'll help you create an addition tailored to your needs and the Pacific Northwest lifestyle.
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Bathroom & Primary Suite Addition

From luxurious primary en-suites to convenient guest baths, we deliver customized solutions with modern fixtures, thoughtful layouts, and timeless style.
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Kitchen Addition

Transform your home for better entertaining with a kitchen addition. Enjoy more cooking space, modern amenities, and increased functionality, all while adding value to your home.
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Garage or ADU Addition

Do you need space to work remotely, store vehicles, or create in your own art studio or woodshop? Enhance your property's value and functionality with a garage or ADU addition. 

Redefining Excellence in the Home Addition Experience

Experience Peace of Mind with Expert Guidance and Unwavering Support at Every Step

Trusted Advisor
Trusted Advisor

An educated homeowner is an empowered homeowner: 

When you have the knowledge you need, you make decisions confidently.

Design - Build
Design - Build

A Holistic approach to your renovation: 

Maximize efficiency and eliminate the risk of rework and wasted time and money.

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Transparency
Transparency

Always do what’s right, not what’s easy:

Clear communication means being upfront with hard conversations and eliminating surprises.

Follow Up & Follow Through
Follow Up & Follow Through

Stand by our work: 

Our extended 5-year warranty is a testament to our craftsmanship and exceptional level of service.

Space Planning 101:

How to Renovate Your Home Layout to Improve Functionality

Featured Home Addition Renovation Project

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GET INSPIRED

Explore how a stunning Craftsman whole-home renovation added square footage, improved functionality, and preserved the home’s historic charm.

Follow Your Path to a Successful Remodel

What to Expect From Our Design-Build Process

Designer Interview

1. Designer Interview

The project developer and an interior designer meet with you virtually to discuss what you envision for the space. We also touch on your aesthetic preferences and encourage you to create inspiration boards using sites like Pinterest and Houzz.

Project Estimates & Design Agreement

2. Project Estimates & Design Agreement

Based on the information gathered during the designer interview, the designer produces a design proposal, estimated lead times, and initial cost estimates. The designer then passes this information to the project developer, who compiles a design agreement.

At this point, we request a pricing services payment so we can compile a detailed and accurate cost estimate, price breakdown, and written scope of the work. Once we complete these pricing services later in the design process, we will provide a fixed-cost agreement so you know exactly what your total investment will be before construction begins. If you move forward with us, we will apply your pricing services payment to construction costs.

Schematic Design

3. Schematic Design

The schematic design phase is about changing the form and function of your space so it works better for you. First, we measure and document your existing space. While on-site, we discuss your functional goals and determine how you want the space to feel. We also help you select layouts and products for your remodel.

Design Development

4. Design Development

During this phase, we focus on your aesthetic desires, developing a specification list of all the fixtures and finishes you want. By gaining a deeper understanding of your preferences and goals, we can pin down every last detail of your project, from bathroom tile and closet dimensions to doorknobs and cabinet hardware. This is the lengthiest phase of the design process and may also include visiting showrooms and viewing samples to help you make the best selections.

Conceptual & Construction Drawings

5. Conceptual & Construction Drawings

Our designer uses computer-aided design (CAD) software to produce detailed conceptual drawings and 3D walkthroughs to help you visualize the finished product. We also present construction drawings to the production team and city permitting offices to ensure every last detail is accounted for.

Project Management & Construction

6. Project Management & Construction

Your designated project manager prices, plans, and coordinates everything before construction begins. We work closely with you when creating the schedule to make sure it works for you. Upon signing the construction agreement, work can begin! Expect your project manager to maintain consistent and effective communication from start to finish via weekly meetings. We promise to address all issues and concerns promptly.

As construction begins, our team seals off work areas to prevent dust and debris from leaving the construction zone. We also clean up after ourselves at the end of each workday to maximize cleanliness and safety.

Installation & Walk-Through

7. Installation & Walk-Through

Once construction is complete, the designer returns to install the finishing touches. If we helped you source new furniture, this is when we coordinate bringing those pieces into your home. If you’re using your existing furniture, the designer arranges the room to meet your needs.

During the final walkthrough, you’ll receive a certificate for Better Builders’ five-year craftsmanship warranty. Our job isn’t complete until you’re in love with how we brought your space to life!

Real People. Real Results.

Discover how Better Builders changed their lives.

Ashley J.
Ashley J.
Normandy Park, WA
The professionalism, attention to detail and follow through with Better Builders cannot be beat. The detailed nature of our Project Manager made ALL the difference, and I can say that we trusted Better Builders to produce our vision. We will never work with any...
Elise K.
Elise K.
Seattle, WA
We were happy with our experience working with Better Builders. Once all of the budgeting was said and done, it did not change throughout the project. The final result looks great, and was done with quality in mind...
Lauren M.
Lauren M.
Seattle, WA
Better Builders helped us with a major remodel of our kitchen and one of our bathrooms. We have a 1920s home and wanted to maintain the period details that make our house so special while updating it with some more modern features like an open floor plan. From the...
Colleen V.
Colleen V.
Renton, WA
The people who work for them in the field are great.
Lynn D.
Lynn D.
Seattle, WA
Better Builders is a conscientious general contractor that takes all necessary measures to make your home even more special. Their team is friendly and easy to work with and as issues come up they are diligent at resolving them quickly and efficiently.
Matthew H.
Matthew H.
Seattle, WA
Bill and his team at Better Builders are great. The did an amazing job on our project; they delivered on time, in budget, and with keen eye to detail and craftsmanship. My dad was a carpenter, my grandfather was a carpenter, and I feel very fortunate to have found...
Maureen D.
Maureen D.
Seattle, WA
On time, on budget, extremely responsive to issues, completed project looks great, and everything still working long after they packed up (neatly) and left. That's pretty much all I want in a builder...
Michael E.
Michael E.
Seattle, WA
We have worked with Better Builders on several projects and they consistently deliver what they promise on time and in budget. I highly recommend them to others!
Elizabeth S.
Elizabeth S.
Seattle, WA
Everyone on the Better Builders team was great, especially Seth and Fred.  All of the carpentry looks great---the banister in particular stands out.

Home Addition FAQs